Biometrical characteristics and physiological responses to a local cold exposure of the extremities
| Autor: | Gustave Savourey, Jacques Bittel, Isabelle Sendowski |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Adult
Male medicine.medical_specialty Physiology Elbow Diastole Blood Pressure Oxygen Consumption Forearm Heart Rate Physiology (medical) Internal medicine Immersion Heart rate Humans Medicine Orthopedics and Sports Medicine integumentary system business.industry Public Health Environmental and Occupational Health VO2 max Extremities General Medicine Anatomy Thermoregulation Physiological responses Cold Temperature Skinfold Thickness medicine.anatomical_structure Body Composition Cardiology Upper limb Skin Temperature business human activities |
| Zdroj: | European Journal of Applied Physiology and Occupational Physiology. 74:85-90 |
| ISSN: | 1439-6327 0301-5548 |
| DOI: | 10.1007/bf00376499 |
| Popis: | The aim of this study was firstly to describe the physiological responses observed in 19 subjects during immersion of the arm up to the elbow in water at 5 degrees C (5 min) followed by a 10-min recovery and secondly, to correlate the observed physiological responses with biometrical characteristics of the subjects (maximal oxygen uptake, VO2max, percentage fat content of whole body, BF, and arm, forearm and hand skinfold thickness). The results showed that the time courses of changes in forearm and hand skin temperature were different compared to those of finger skin temperatures both during local cooling and during rewarming (P0.05). Cardiovascular responses (heart rate, systolic and diastolic blood pressures) and finger skin temperatures were not related to the biometrical characteristics of the subjects. However, at the end of the immersion, decreased hand skin temperature was correlated to VO2max (r = 0.45, Por = 0.05) whereas decreased forearm skin temperature was correlated both to VO2max (r = 0.44, Por = 0.05) and to skinfold thickness (r = -0.44, Por = 0.05) but not to BF. During the beginning of the recovery period only, outside, inside forearm and hand skin temperatures were related to VO2max (r = 0.54, Por = 0.05; r = 0.66, Por = 0.01 and r = 0.45, Por = 0.05, respectively) and all the skinfold thicknesses (r = -0.47 to -0.71, Por = 0.05). It was concluded that the local skin temperature profiles differed according to the upper limb segment both during cooling and during early rewarming. Moreover, VO2max and upper limb skinfold thickness but not BF did influence the forearm and hand skin temperature changes during cooling and early rewarming but not the finger skin temperature changes and cardiovascular responses. |
| Databáze: | OpenAIRE |
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